JavaScript Tutorial

The language for programming web pages.

Chapter Quiz Exercises
Course Topics
JS Introduction JS Where To JS Output JS Variables JS Data Types JS Functions JS Objects JS Arrays JS Strings JS If Conditions JS Loops JS Math JS Errors JS Scope JS DOM JS Events JS Promises & Async JS Classes JS JSON JS RegExp

JS Strings

JavaScript Strings

Strings in JavaScript are used for storing and manipulating text. Strings can be enclosed in single quotes, double quotes, or backticks (template literals).

Common String Methods:

  • length — String length
  • toUpperCase() / toLowerCase()
  • trim() — Remove whitespace
  • includes() — Check substring
  • replace() / replaceAll()
  • split() — Split to array
  • slice(start, end) — Extract substring
  • indexOf() — Find position

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Topics
JS Introduction JS Where To JS Output JS Variables JS Data Types JS Functions JS Objects JS Arrays JS Strings JS If Conditions JS Loops JS Math JS Errors JS Scope JS DOM JS Events JS Promises & Async JS Classes JS JSON JS RegExp